#include <stdio.h>
#include <string.h>

#define LENGTH 10

extern void show01();
void show01();

void show02();

void show03();

void show04();

void show05();

void show06();

void main()
{

  

    
    
    
          
}

void show01()
{
    //int i=32;
    printf("%d\n", 10);
}

void show02(){
    char c = 'a';
    printf("%c\n", c);

    int area = LENGTH * LENGTH;
    printf("area is %d\n", area);

    const int width = 5;

    //width=6;

    printf("num is %d\n", width);

    char str1[] = "http://www.baidu.com/";
    char *str2 = "知音漫客动漫";

    puts(str1);

    puts(str2);
}

void show03(){
    int n=123456;
    double f=234.234242;
    char *str="aaasssddd";
    printf("n: %.9d %.4d\n", n, n);

    printf("f: %.2lf %.4lf %.10lf\n", f, f, f);

    printf("str: %.5s %.15s\n", str, str);
}



void show04(){
    int a=0,b=0,c=0,d=0;

    scanf("%d",&a);
    scanf("%d",&b);

    printf("a+b=%d\n",a+b);

}

void show05(){
    char c;
    c=getchar();
    printf("c=%c\n",c);

    char d;
    d = getche();
    printf("d=%c\n",d);
   
   char e=getch();

   printf("e=%c\n",e);
}

void show06(){
    char author[30],lang[30],url[30];
    gets(author);
    printf("author is %s\n",author);

    gets(lang);
    printf("lang is %s\n",lang);

    gets(url);
    printf("url is %s\n",url);
}

void show07(){
     int num[10];
    int i;
    for ( i = 0; i < 10; i++)
    {
        scanf("%d",&num[i]);
    }


    for ( i = 0; i < 10; i++)
    {
        printf("num is %d\n",num[i]);
    }
}




